👉 Permafrost, also known as subarctic ice, is a type of frozen ground that typically occurs in the Arctic region. It is composed primarily of organic material such as plant and animal remains, which has been frozen for millions of years. Permafrost can vary greatly depending on location, but it generally forms over long periods of time and exhibits a unique ability to retain heat without melting or thawing. Permafrost plays an important role in the Earth's climate system, serving as a
